修复alexa统计

Controller/Alexa.py

@@ -88,9 +88,9 @@ class AlexaConnectNum(TemplateView):
         res = []
         #最近三十天每天最高连接数
         if operation == 'thirtyDays':
-            query_num = AlexaConnectStatisticsModel.objects.\
-                extra(select={"data_time": "FROM_UNIXTIME(data_time, '%%m-%%d')"}).\
-                values('num', 'data_time').order_by('-data_time')[:30]
+            query_num = AlexaConnectStatisticsModel.objects. \
+                            extra(select={"month_day_time": "FROM_UNIXTIME(data_time, '%%m-%%d')"}). \
+                            values('num', 'month_day_time').order_by('-data_time')[:30]
             res = list(query_num)
 
         #最近十二个月每月最高连接数